用大恒3通道采集卡，实现摄象机的实时采集。-Daheng with 3-channel acquisition card, the realization of real-time acquisition cameras.

基本STC51单片机的PWM双直流电流扫描激光灯，通过控制两电机的不同速度比来实现多种图案的扫描显示。-Basic STC51 MCU PWM double dc current scanning laser, by controlling the different speed ratios of the two motor to realize the scans showed a variety of design.